Buick LeSabre 1965 Service Manual page 500

8 - 3 6 POWER STEERING
STEERING GEAR, STEERING COLUMNS AND LINKAGE
HOUSING
SINGLE
LIP SEAL
RETAINING
RING
DOUBLE
LIP SEAL
BACK-UP WASHERS
Figure 8-50—Pitman Shaft Seals
Figure 8-51—Installing Pitman
Shaft Seals
5. Remove the side cover "O"
ring seal and discard.
b. Disassembly of Pitman
Shaft Assembly
1. Remove the pitman shaft seal
retaining ring from end of housing
using No. 3 Truarc Pliers J-4245
and remove outer seal back-up
washer. Tap a screwdriver be-
tween the outer seal and the inner
back-up washer and pry out seal.
Tap the screwdriver between the
inner seal and the shoulder in the
gear housing and pry out inner
seal. Be careful not to damage
the seal bore in housing. Discard
seals.
2. Check the pitman shaft needle
bearing for being worn, pitted or
scored. If damaged, remove nee-
dle bearing from gear housing
bore by driving from the seal
bore side of housing using Tool
J-6657. See Figure 8-48. Discard
bearing.
3. Hold the lash adjuster with an
Allen Wrench and remove the lash
adjuster nut. Discard nut. Re-
move side cover from lash ad-
juster.
c. Inspection of Pitman Shaft
Assembly
1. Inspect pitman shaft bushing
surface in side cover for exces-
sive wear or scoring. If worn or
scored, replace side cover.
2. Check the pitman shaft sector
teeth and the bearing and seal
s u r f a c e s . If worn, pitted or
scored replace pitman shaft.
3. Check the torque on the lash
a d j u s t e r . See Figure 8-49. If
torque exceeds 15 inch pounds,
pitman shaft assembly should be
replaced.
d. Reassembly of Pitman
Shaft Assembly
1. If pitman shaft needle bearing
was removed because of damage,
install new needle bearing into
gear housing bore from seal bore
end, pressing against stamped
identification on bearing with Tool
J-6657. Press in until bearing
clears shoulder in gear housing,
1/32" maximum. Rollers in bear-
ing must be free to rotate.
2. Lubricate new pitman shaft
seals in automatic transmission
oil. Install the inner, single lip
seal in bore first, then a back-up
washer. See Figure 8-50. Using
Tool J-6219, drive the seal and
washer in far enough to provide
clearance for the outer s e a l ,
back-up washer and retaining
ring. See Figure 8-51. The inner
seal must not bottom on the coun-
terbore. Install the outer double
lip seal and the second back-up
washer in bore only far enough to
provide clearance for the retain-
ing ring with Tool J-6219. Install
retaining ring with No. 3 Truarc
Pliers Tool J-4245, making cer-
tain that ring is seated properly.
Figure 8-52—Removing Housing End
Plug Retaining Ring